<p>this is a sentence_with_mid underscores</p>
<p>this is a sentence with just_one underscore</p>
<p>this <em>should be parsed</em> as emphasis</p>
<p>this is double__underscore__mid word</p>
<p>this has just__one double underscore</p>
<p>this <strong>should be parsed</strong> as bold</p>
<p>emphasis at <em>end of sentence</em></p>
<p><em>emphasis at</em> line start</p>
<p>multi <em>line emphasis
yeah it is</em> yeah</p>
